Powerful winds hitting speeds of approximately 155km/h (96mph) have caused nearly 90,000 properties lacking electricity and forced agencies to cancel in excess of 100 aircraft departures, according to local media.
The winds are affecting the entire southern region and lower areas of the North Island, according to the national weather agency.
New Zealand authorities have issued rare red wind warnings - the highest alert level - in key areas encompassing these major districts.
People have been urged to avoid going outside, avoid travel, and get ready for further utility disruptions.
Extensive Impact and Crisis Response
This outage seems to be impacting households mainly in the South Island, while officials say that power was being slowly brought back.
Regional news have indicated that in various locations structures have suffered roof damage, and power lines and trees have been knocked down by the gusts.
In Wellington, a person was fatally injured after being hit by a wooden fragment at a popular trail walking spot on Tuesday.
Additionally in the city, a woman was pushed toward oncoming traffic on a street by a powerful blast, in a incident that was filmed in a widely shared car camera footage.
Aircraft services to and from the metropolis have been suspended due to the winds, while certain highways and community centers are also closed.
Simultaneously Canterbury officials have announced a crisis declaration, to facilitate disaster response efforts.
Labor Protests Alongside Extreme Conditions
These intense gusts on Thursday occur while many of teachers, doctors and other public workers are participating in what has been called a "significant labor action", demanding higher wages and enhanced employment terms.
But the severe conditions has pressured them to change various scheduled activities, with several external protests relocated inside or cancelled.
Like conditions are affecting the neighboring country, ushering in a heatwave to the remote areas.
Agencies have declared flame prohibitions for fear of bushfires.
